CN86102000A - Insulated bags for vacuum packaging fine powder materials - Google Patents

Insulated bags for vacuum packaging fine powder materials Download PDF

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Publication number
CN86102000A
CN86102000A CN198686102000A CN86102000A CN86102000A CN 86102000 A CN86102000 A CN 86102000A CN 198686102000 A CN198686102000 A CN 198686102000A CN 86102000 A CN86102000 A CN 86102000A CN 86102000 A CN86102000 A CN 86102000A
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layer
metal level
bag
metal layer
thermal protective
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CN198686102000A
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CN86102000B (en
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佛朗哥·莫雷蒂
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Whirlpool International Co Ltd
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Philips Gloeilampenfabrieken NV
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/26—Articles or materials wholly enclosed in laminated sheets or wrapper blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/38—Articles or materials enclosed in two or more wrappers disposed one inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/46—Bags
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material
    • F25D2201/122—Insulation with respect to heat using an insulating packing material of loose fill type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Composite Materials (AREA)
  • Packages (AREA)
  • Laminated Bodies (AREA)
  • Refrigerator Housings (AREA)
  • Bag Frames (AREA)
  • Thermal Insulation (AREA)

Abstract

真空包装微细材料(12)的保温袋(1)包括带有可热焊塑料层(8，10)和中间金属层(9)的多层片料，为防止通过金属层从袋子的一侧向另一侧宣导热量，该金属层的尺寸小于其它层的尺寸，所以封接的边缘(3)不包括金属层。为了定位和固定的目的金属层(9)包括封装在塑料层(8，10)之间的小片9A。

The thermal insulation bag (1) for vacuum-packing fine material (12) comprises a multi-layer sheet material with heat-weldable plastic layers (8, 10) and an intermediate metal layer (9), in order to prevent the metal layer from one side of the bag from The other side dissipates heat, the dimensions of this metal layer are smaller than those of the other layers, so the edge (3) of the seal does not include the metal layer. The metal layer (9) comprises a die 9A encapsulated between the plastic layers (8, 10) for positioning and fixing purposes.

Description

本发明涉及的真空包装微细粉末材料保温袋。保温袋至少由一块多层片料制成，每块片料又由可热焊塑料内层和外层以及中间金属层组成。The invention relates to a thermal insulation bag for vacuum packaging fine powder materials. The thermal insulation bag is made of at least one multi-layer sheet material, and each sheet material is composed of heat-weldable plastic inner and outer layers and a middle metal layer.

这种保温袋可以从日本专利申请号58-145678上了解到。生产这种保温袋，先是在大气压下把微细粉末（例如珍珠岩）装入一纸袋并用胶带封闭。纸袋能透气但漏不出粉末。封闭的纸袋放进不透气的可热焊软袋时，把这个组装好的袋子抽真空，并沿着软袋边缘采用热焊以封闭此袋同时保持内部的真空。这种可热焊的袋子是由多层层叠材料组成的，它包括一个不透气的金属层和一可热焊塑料的内层。构成保温袋的其它方法已经在意大利专利申请号21053A/84中说明了，用这些方法，将硅质微细粉末真空包装在有中间金属层（铝）和可热焊塑料内层的三层或更多层的可热焊包装袋内。Such a thermal bag is known from Japanese Patent Application No. 58-145678. To produce this kind of thermal insulation bag, a fine powder (such as perlite) is first packed into a paper bag under atmospheric pressure and sealed with tape. The paper bag is breathable but does not leak powder. When the closed paper bag is put into an airtight heat-weldable soft bag, the assembled bag is evacuated and heat welded along the edge of the soft bag to close the bag while maintaining the vacuum inside. The heat-weldable bag is formed from a multilayer laminate comprising an air-impermeable metal layer and an inner layer of heat-weldable plastic. Other methods of constituting thermal insulation bags have been described in Italian Patent Application No. 21053A/84, by which siliceous micropowders are vacuum-packed in three or more layers with an intermediate metal layer (aluminum) and an inner layer of heat-weldable plastic. In a multi-layer heat-weldable bag.

在所有这些已发明的包装袋中，其组成包装袋的各层材料包括良导热性金属层在内的尺寸都是相同的。在热焊焊缝及其附近处，两侧金属层之间靠得比较近例如家用电冰箱，这些保温袋用于冰箱时是放置在泡沫聚氨基甲酸塑料中并与它一起构成冰箱绝热层。袋子的两侧面之间的温度是不同的，因为一面是朝着低温制冷箱，而另一面则朝着较暖的外界环境。已经发现从袋的一侧向另一侧有热泄漏，它是由于沿着边缘的两侧金属层靠近而造成的。In all of these inventive packages, the dimensions of the layers of material comprising the package, including the metal layer with good thermal conductivity, are the same. At the heat welding seam and its vicinity, the metal layers on both sides are relatively close, such as household refrigerators. When these thermal insulation bags are used in refrigerators, they are placed in foamed polyurethane plastic and together with it form the insulation layer of the refrigerator. . The temperature is different between the two sides of the bag as one side faces the cryogenic freezer and the other faces the warmer outside environment. It has been found that there is a heat leak from one side of the bag to the other due to the proximity of the metal layers on both sides along the edge.

本发明的一个目的是提供一种改进了结构的保温袋，它起码能减轻上述的缺陷。It is an object of the present invention to provide a thermal bag of improved construction which at least alleviates the above-mentioned disadvantages.

根据本发明所描述的这类保温袋，其特征在于金属层的尺寸小于其它层的尺寸，因而当袋中充填所述微细粉末材料时，袋子的两个主表面上有一个基本平行的部分，而金属层则完整的覆盖着上述主表面的平行部分。The heat preservation bag of the type described according to the invention is characterized in that the size of the metal layer is smaller than that of the other layers, so that when the bag is filled with said fine powder material, the two main surfaces of the bag have a substantially parallel portion, The metal layer completely covers the parallel portion of the above-mentioned main surface.

每一金属层最好与其它塑料层相互固定，以防止金属层相对其它层的移动，特别是在袋子的制造过程便于插入装粉末的纸袋。金属层可用点焊等的方法固定。Each metal layer is preferably mutually secured to the other plastic layers to prevent movement of the metal layer relative to the other layers, particularly to facilitate insertion of the powder-containing paper bag during bag manufacture. The metal layer can be fixed by spot welding or the like.

体现本发明的一个实例包括两块沿其周边被封接起来的多层片料，每一金属层又有几个突出的小片以起到把金属层固定到其它层，以及相对其它层定位的作用。所述突出小片延伸到其它层的周边上。借助于小片确定金属层相对其它层的位置，然后沿着四周边把所有的层封接在一起，薄片也被封装在其它塑料层之间。虽然现在两侧小片彼此紧靠并产生局部导热，引起热量损失和降低绝热性，但这种热泄漏非常少，金属层间定位、安装比较简易和便宜的优点足以弥补上述微量热损失的缺点。An example embodying the invention comprises two multilayer sheets sealed around their perimeters, each metal layer having several protruding tabs to serve as a means of securing the metal layer to the other layer and positioning it relative to the other layer. effect. The protruding tabs extend over the perimeter of the other layers. The position of the metal layer relative to the other layers is determined by means of the tabs, and all the layers are then sealed together along the perimeter, the tabs also being encapsulated between the other plastic layers. Although the small pieces on both sides are close to each other and produce local heat conduction, causing heat loss and reducing thermal insulation, this kind of heat leakage is very small, and the advantages of positioning between metal layers and installation are relatively simple and cheap enough to make up for the above-mentioned shortcomings of slight heat loss.

体现本发明的另一个实例包括一块单一的多层片料，它被对半折起来并在其各自的自由周边封接在一起。其金属层在折叠处开一个缺口。这样使得两个基本平行的金属层在折迭处只通过两个小窄条互相连接的并且在折叠面靠外的两端上的窄条金属层起到与另一金属层互相固定和定位的作用。它们由该金属层延伸到其它层的周边上。本实例除了具有第一个实例的优点以外还具有仅用一块多层片料的优点。Another embodiment embodying the invention comprises a single multi-ply sheet material which is folded in half and sealed together at their respective free peripheries. Its metal layer is notched at the fold. In this way, the two substantially parallel metal layers are only connected to each other by two small narrow strips at the fold, and the narrow strip metal layers on the outer two ends of the folded surface can be fixed and positioned with the other metal layer. effect. They extend from the metal layer to the periphery of the other layers. This example has the advantage of using only one multilayer sheet in addition to the advantages of the first example.

现在将参照附图通过实例来更详细地叙述本发明，其中The invention will now be described in more detail by way of example with reference to the accompanying drawings, in which

图1表示根据本发明的保温袋轮廓立体图Fig. 1 shows the perspective view of the outline of the heat preservation bag according to the present invention

图2是从图1的Ⅱ-Ⅱ线剖视的放大比例了的保温袋密封边沿剖视图Fig. 2 is an enlarged scale sectional view of the seal edge of the thermal insulation bag taken from the Ⅱ-Ⅱ line of Fig. 1

图3是从图1的Ⅲ-Ⅲ线剖视的放大比例了的保温袋密封边沿剖视图Fig. 3 is an enlarged scale sectional view of the seal edge of the thermal insulation bag taken from the III-III line in Fig. 1

图4是三层分别画的立体轮廓图，在中间金属层内标出了切割线，参照这些图，序号1表示的软保温袋是由两个形状相同的（例如方形的）叠放片料2A，2B组成，先沿着三个边沿把它们热焊起来，例如延着两个纵向边沿3，4和一个横向边沿5。在图1中，用剖面线表示了袋子的边缘已密封住。序号6表示的第4个边缘仍敞着口，以使装有硅质隔热微细粉末物质口（例如珍珠岩）的封闭纸袋7能插入其中。该纸袋能透气而漏不出粉末。插入后，在真空条件下处理保温袋1，并用热焊沿着所述开口6封闭袋子1。在图1中，这道热焊缝也用斜线表示。Figure 4 is a three-dimensional outline drawing of the three layers, and the cutting line is marked in the middle metal layer. Referring to these figures, the soft heat preservation bag represented by serial number 1 is composed of two stacked sheets of the same shape (for example, square) 2A, 2B are formed, and they are thermally welded along three edges earlier, for example along two longitudinal edges 3, 4 and a transverse edge 5. In Fig. 1, the sealed edges of the bag are indicated by hatching. The 4th edge that sequence number 6 represents is still open mouth, so that the closed paper bag 7 that siliceous thermal insulation fine powder material mouth (for example perlite) is housed can be inserted wherein. The paper bag is breathable and does not leak powder. After insertion, the thermal bag 1 is treated under vacuum and the bag 1 is closed along said opening 6 with heat welding. In Figure 1, this heat weld is also indicated by a slash.

如上所述，袋1是由两块相同的片料2A和2B组成。这些多层片料包括聚乙烯内层8（例如50μ厚），中间铝层9（例如9μ厚）和聚脂外层10（例如12μ厚）。As mentioned above, the bag 1 is composed of two identical sheets 2A and 2B. These multilayer sheets comprise an inner polyethylene layer 8 (eg 50µ thick), an intermediate aluminum layer 9 (eg 9µ thick) and a polyester outer layer 10 (eg 12µ thick).

中间金属层9（在图1中，其轮廓用虚线表示出）的尺寸小于另两个相邻的层8，10的尺寸并位于这两个层的中央，如图1所示。金属层的放置是这样的：用微细粉末装入保温袋时，除了4个小片用于确定金属层9相对另外两个层8，10的位置以外，金属层覆盖着袋子上基本是彼此平行部位的主要表面（见图2）小片9A是封装在层8和10的边缘之间的（见图3）。The intermediate metal layer 9 (outlined in dotted lines in FIG. 1) has smaller dimensions than the other two adjacent layers 8, 10 and is located centrally between these two layers, as shown in FIG. The placement of the metal layer is like this: when the fine powder is packed into the heat preservation bag, except for the four small pieces used to determine the position of the metal layer 9 relative to the other two layers 8, 10, the metal layer covers the parts of the bag that are basically parallel to each other. The major surface (see FIG. 2) of die 9A is encapsulated between the edges of layers 8 and 10 (see FIG. 3).

在生产过程中，这些层是从各自的卷轴上展开的。图4表示展开了的部分层带。金属层带9的宽度小于其它层。在层中有着相等的矩形开口20。During production, the layers are unrolled from their respective spools. Figure 4 shows the partially ply tape unfolded. The metal layer strip 9 has a smaller width than the other layers. There are equal rectangular openings 20 in the layer.

沿着穿过开口20中间的X1X2X3…线切开层带，就得到带有小片9A的独立金属层片，如图1虚线所示。这些金属层片是用来制造由两块多层片组成的袋子的。Cut the strip along the line X 1 X 2 X 3 . These metal plies are used to make bags that consist of two ply sheets.

仅沿着X1，X3，（X5）…切割层带9，得到的层片包括位于中间的开口20以及自由边上的小片9A。把这样的金属层片封装于相应的可热焊塑料的内层和外层部分以后，将此组合好的多层片料对折起来，并把两个相对着的松散边缘（像图1的3和4）封接在一起。用这种方法得到的袋子仅在一端开着口用来插入装了微细粉末的纸袋，并且在折叠面处，通过两个小片9A组成的狭条部分使袋子两侧彼此联接。在这种情况下，保温袋仅用一块多层片料组成，同时也省去了一个边缘的密封操作。The ply strip 9 is cut only along X 1 , X 3 , (X 5 ) . After encapsulating such a metal layer sheet in the inner and outer layer parts of the corresponding heat-weldable plastic, the combined multi-layer sheet material is folded in half, and the two opposite loose edges (like 3 in Fig. 1) are folded. and 4) are sealed together. The bag obtained in this way is open only at one end for inserting the paper bag containing the fine powder, and at the folded face, the two sides of the bag are joined to each other by a strip portion consisting of two small pieces 9A. In this case, the thermal bag is composed of only one multi-layer sheet, and the sealing operation of one edge is also omitted.

Claims (4)

1, the thermal protective aid of vacuum-packed attritive powder material comprises at least one multilayer sheet stock, but every multilayer sheet stock comprises internal layer and the skin and the intermediate metal layer of hot weld plastics again, it is characterized in that the size of the size of this metal level less than other layer, when thermal protective aid is loaded onto described attritive powder material, on the substantially parallel each other position of sack both sides first type surface, be covered with by metal level fully.
2,, it is characterized in that each metal level and other plastic layer interfix according to the described thermal protective aid of claim 1.
3, comprise that according to claim 1 or 2 described thermal protective aids two its each comfortable surroundings are enclosed in multilayer sheet stock together, it is characterized in that each metal level comprises the thin slice that they is fixed to other layer and relative other layer location, described thin slice is stretched on the periphery of other layer.
4, comprise the multilayer sheet stock that a mono-is half-and-half turned up according to claim 1 or 2 described thermal protective aids, its loose edge is sealed up on its periphery.It is characterized in that on the metal level of folding position, an opening being arranged.The both sides metal level is that fillet by burst partly links like this.And fillet plays the effect that metal level is fixed to other layer and relative other layer location in the outside of burst, and described little arrow gauge extends on the periphery of other layer.
CN86102000A 1985-03-29 1986-03-26 Vacuum thermal sack for packing powder materials Expired CN86102000B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT21280B/85 1985-03-29
ITMI1985U21280U IT8521280U1 (en) 1985-03-29 1985-03-29 FLEXIBLE ENVELOPE OR BAG CONTAINER PREFERABLY FOR VACUUM-PACKED POWDERED HEAT-INSULATING MATERIAL.

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CN86102000A true CN86102000A (en) 1986-12-24
CN86102000B CN86102000B (en) 1988-08-24

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EP (1) EP0196721B1 (en)
JP (1) JPH0451358Y2 (en)
CN (1) CN86102000B (en)
DE (1) DE3676529D1 (en)
ES (1) ES293216Y (en)
IT (1) IT8521280U1 (en)

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CN1309625C (en) * 2000-12-21 2007-04-11 卡购技术公司 Inflatable insulating liners for shipping containers
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Also Published As

Publication number Publication date
DE3676529D1 (en) 1991-02-07
EP0196721B1 (en) 1990-12-27
EP0196721A2 (en) 1986-10-08
IT8521280U1 (en) 1986-09-29
ES293216Y (en) 1987-07-01
US4662521A (en) 1987-05-05
ES293216U (en) 1986-11-01
JPH0451358Y2 (en) 1992-12-03
IT8521280V0 (en) 1985-03-29
EP0196721A3 (en) 1988-04-06
CN86102000B (en) 1988-08-24
JPS61200588U (en) 1986-12-16

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